{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Relative percentages of lipid classes and fatty acids / acyls composition of the commercial feeds and fish dorsal muscles were assessed by means of an interdisciplinary analytical approach ."}
{"Chemical": ["fatty acids", "acyls"]}